Practice Connecting to Different Databases - 3.9 | 3. Java Database Connectivity (JDBC) | Advance Programming In Java
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3.9 - Connecting to Different Databases

Learning

Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What is the JDBC URL format for connecting to MySQL?

💡 Hint: Remember the structure: 'jdbc:mysql://host:port/dbname'.

Question 2

Easy

How do you connect to a PostgreSQL database using JDBC?

💡 Hint: What is the port number for PostgreSQL?

Practice 4 more questions and get performance evaluation

Interactive Quizzes

Engage in quick quizzes to reinforce what you've learned and check your comprehension.

Question 1

What is the JDBC URL for connecting to MySQL?

  • jdbc:mysql://localhost:3306/dbname
  • jdbc:postgresql://localhost:5432/dbname
  • jdbc:oracle:thin:@localhost:1521:orcl

💡 Hint: Remember the structure starts with 'jdbc:mysql'.

Question 2

True or False: You can connect to a SQLite database using the URL 'jdbc:sqlite:path_to_db_file'.

  • True
  • False

💡 Hint: What does 'sqlite' indicate in the URL?

Solve 1 more question and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

Design a hypothetical Java application that connects to both MySQL and PostgreSQL. Discuss how you would manage the connection strings and what potential issues could arise.

💡 Hint: Consider using connection pools to manage multiple connections effectively.

Question 2

Explain what would happen if a developer mistakenly uses the URL 'jdbc:mysql://localhost:1234/dbname' instead of the correct port 3306.

💡 Hint: What kind of exceptions do you usually look for when troubles connecting?

Challenge and get performance evaluation